Math 221 week 7 quiz - Study guides, Class notes & Summaries
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DeVry University, Naperville MATH 221 Math 221 Week 7 Quiz
- Exam (elaborations) • 18 pages • 2023
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Question 1 
2 / 2 pts 
(CO6) From a random sample of 55 businesses, it is found that the mean time that 
employees spend on personal issues each week is 5.8 hours with a standard deviation 
of 0.35 hours. What is the 95% confidence interval for the amount of time spent on 
personal issues? 
(5.74, 5.90) 
(5.73, 5.87) 
(5.72, 5.88) 
Correct! 
(5.71, 5.89) 
Question 2 
0 / 2 pts 
(CO6) If a confidence interval is given from 8.54 to 10.21 and the mean is known to be 
9.375, what is the maximum erro...
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Math 221 Quiz Week 1 to Week 7 Combined Quizzes with complete solution
- Exam (elaborations) • 40 pages • 2023
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Math 221 Quiz Week 1 to Week 7 Combined Quizzes with complete solution
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MATH 221 Quiz Week 7 : DeVry University, New York - Worth 60 Points.
- Exam (elaborations) • 2 pages • 2024
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MATH 221 Quiz Week 7 : DeVry University, New York - Worth 60 Points.
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MATH 221 Week 7 Quiz: Statistics for Decision-Making (v1) |TOP RATED PAPER | Already GRADED A+
- Exam (elaborations) • 14 pages • 2022
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MATH 221 Week 7 Quiz: Statistics for Decision-Making (v1) Question: (CO 4) From a random sample of 55 businesses, it is found that the mean time that employees spend on personal issues each week is 4 .9 hours with a standard deviation of 0.35 hours. What is the 95% confidence interval for the amount of time spent on personal issues? Question: (CO 4) If a confidence interval is given from 8.56 to 10.19 and the mean is known to … 9.375, what is the margin of error? Question: (CO 4) If the popula...
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MATH 221 Week 7 Quiz: Statistics for Decision-Making (LATEST UPDATE) | 100% guaranteed pass
- Exam (elaborations) • 10 pages • 2022
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MATH 221 Week 7 Quiz: Statistics for Decision-Making (May 2021) Question: (CO 6) The coefficient of determination is represented by what notation? Question: (CO 6) Two variables have a negative non- linear correlation. Does the independent variable increase or decrease as the dependent variable increases? Question: (CO 6) Find the regression equation for the following data set Question: (CO 6) An instructor wants to determine if a longer lesson would improve student test scores. Which variable w...
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DeVry University, Keller Graduate School of Management_MATH 221Week 7 quiz (Latest 2022/2023)
- Exam (elaborations) • 18 pages • 2023
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Question 1 
2 / 2 pts 
(CO6) From a random sample of 55 businesses, it is found that the mean time that 
employees spend on personal issues each week is 5.8 hours with a standard deviation 
of 0.35 hours. What is the 95% confidence interval for the amount of time spent on 
personal issues? 
(5.74, 5.90) 
(5.73, 5.87) 
(5.72, 5.88) 
Correct! 
(5.71, 5.89) 
Question 2 
0 / 2 pts 
(CO6) If a confidence interval is given from 8.54 to 10.21 and the mean is known to be 
9.375, what is the maximum erro...
-
1 GRE GRE 2 Section 1: Sec One (1 to 20) Details: Analogies Part 1 Practice Questions: QUESTION: 1 DRIP : GUSH A. cry : laugh B. curl : roll C. stream : tributary D. dent : destroy E. bend : angle Answer: D QUESTION: 2 WALK : LEGS A. blink : eyes B. c
- Exam (elaborations) • 146 pages • 2023
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1 
GRE 
GRE 
2 
 
Section 1: Sec One (1 to 20) 
Details: 
Analogies Part 1 
Practice Questions: 
QUESTION: 1 
DRIP : GUSH 
A. cry : laugh 
B. curl : roll 
C. stream : tributary 
D. dent : destroy 
E. bend : angle 
Answer: D 
QUESTION: 2 
WALK : LEGS 
A. blink : eyes 
B. chew : mouth 
C. dress : hem 
D. cover : book 
E. grind : nose 
Answer: B 
QUESTION: 3 
ENFRANCHISE : SLAVERY 
A. equation : mathematics 
B. liberate : confine 
C. bondage : subjugation 
D. appeasement : unreasonable 
E. anato...
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Exam (elaborations) MATH221 Graded week 7 quiz (MATH221)MATH 221 Week 7 Quiz
- Exam (elaborations) • 4 pages • 2022
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(TCO 6) In the standard normal distribution, the standard deviation is always 
Student Answer:	 0 
 1 
 2 
 none of these 
 
 
 2.	Question :	(TCO 6) The area under a normal curve with mu = 8 and sigma = 3 is 
Student Answer:	 0 
 1 
 2 
 none of these 
 
 
 3.	Question :	(TCO 6) If Larry gets a 70 on a physics test where the mean is 65 and the standard deviation is 5.8, where does he stand in relation to his classmates? 
Student Answer:	 He is in the top 10%. 
 He is in the top 20%. 
 He is i...
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MATH-221 Week 3 Quiz: Statistics for Decision-Making (v6) | Download To Score An A
- Exam (elaborations) • 20 pages • 2022
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MATH-221 Week 3 Quiz: Statistics for Decision-Making (v6) Question: (CO 1) Among 500 people at the concert, a survey of 35 found 28% found it too loud. What is the population and what is the sample? Question: (CO 1) A survey of all 35 employees at a small company finds that 89% of them like the recent changes to the company’s benefits. Is this percentage a parameter or a statistic and why? Question: (CO 1) Classify the data of the number of customers at a restaurant. Question: (CO 1) The data ...
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MATH 221 WEEK 7 QUIZ (100% CORRECT ANSWERS) | DeVry University.
- Exam (elaborations) • 14 pages • 2021
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MATH 221 WEEK 7 QUIZ Question 1 2 / 2 pts (CO6) From a random sample of 55 businesses, it is found that the mean time that employees spend on personal issues each week is 5.8 hours with a standar d deviation of 0.35 hours. What is the 95% confidence interval for the amount of time spent on personal issues? Correct! (5.71, 5.89) (5.73, 5.87) (5.72, 5.88) (5.74, 5.90) Question 2 2 / 2 pts (CO6) If a confidence interval is given from 8.52 to 10.23 and the mean is known to be 9.375, what is the marg...
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